diff --git a/target/linux/lantiq/ase/target.mk b/target/linux/lantiq/ase/target.mk
index 82a162bbb1e..daabbfc74a2 100644
--- a/target/linux/lantiq/ase/target.mk
+++ b/target/linux/lantiq/ase/target.mk
@@ -7,7 +7,7 @@
 ARCH:=mips
 SUBTARGET:=ase
 BOARDNAME:=Amazon-SE
-FEATURES:=atm mips16 small_flash
+FEATURES+=atm mips16 small_flash
 CPU_TYPE:=mips32
 
 DEFAULT_PACKAGES+=kmod-leds-gpio kmod-gpio-button-hotplug \
diff --git a/target/linux/lantiq/falcon/target.mk b/target/linux/lantiq/falcon/target.mk
index ddab1988492..90f81d25ca8 100644
--- a/target/linux/lantiq/falcon/target.mk
+++ b/target/linux/lantiq/falcon/target.mk
@@ -1,7 +1,7 @@
 ARCH:=mips
 SUBTARGET:=falcon
 BOARDNAME:=Falcon
-FEATURES:=nand
+FEATURES+=nand
 CPU_TYPE:=24kc
 
 DEFAULT_PACKAGES+= kmod-leds-gpio \
diff --git a/target/linux/lantiq/xrx200/target.mk b/target/linux/lantiq/xrx200/target.mk
index 8497db51ba0..f7dc8ac1c73 100644
--- a/target/linux/lantiq/xrx200/target.mk
+++ b/target/linux/lantiq/xrx200/target.mk
@@ -1,7 +1,7 @@
 ARCH:=mips
 SUBTARGET:=xrx200
 BOARDNAME:=XRX200
-FEATURES:=atm nand ramdisk
+FEATURES+=atm nand ramdisk
 CPU_TYPE:=24kc
 
 DEFAULT_PACKAGES+=kmod-leds-gpio \
diff --git a/target/linux/lantiq/xway/target.mk b/target/linux/lantiq/xway/target.mk
index 9ad240e8ca4..cb2a446dea8 100644
--- a/target/linux/lantiq/xway/target.mk
+++ b/target/linux/lantiq/xway/target.mk
@@ -1,7 +1,7 @@
 ARCH:=mips
 SUBTARGET:=xway
 BOARDNAME:=XWAY
-FEATURES:=atm nand ramdisk
+FEATURES+=atm nand ramdisk
 CPU_TYPE:=24kc
 
 DEFAULT_PACKAGES+=kmod-leds-gpio kmod-gpio-button-hotplug swconfig
diff --git a/target/linux/lantiq/xway_legacy/target.mk b/target/linux/lantiq/xway_legacy/target.mk
index 641c590d48c..653698d6d72 100644
--- a/target/linux/lantiq/xway_legacy/target.mk
+++ b/target/linux/lantiq/xway_legacy/target.mk
@@ -1,7 +1,7 @@
 ARCH:=mips
 SUBTARGET:=xway_legacy
 BOARDNAME:=XWAY Legacy
-FEATURES:=atm ramdisk small_flash
+FEATURES+=atm ramdisk small_flash
 CPU_TYPE:=24kc
 
 DEFAULT_PACKAGES+=kmod-leds-gpio kmod-gpio-button-hotplug swconfig